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C-2129 Decomp shared logic in collections tabs (#2843)
Co-authored-by: Nikki Kang <[email protected]>
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109 changes: 109 additions & 0 deletions
109
packages/mobile/src/screens/favorites-screen/useCollectionScreenData.ts
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,109 @@ | ||
| import { useMemo } from 'react' | ||
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|
||
| import { | ||
| reachabilitySelectors, | ||
| shallowCompare, | ||
| useProxySelector | ||
| } from '@audius/common' | ||
| import { useSelector } from 'react-redux' | ||
|
|
||
| import { useIsOfflineModeEnabled } from 'app/hooks/useIsOfflineModeEnabled' | ||
| import type { AppState } from 'app/store' | ||
| import { | ||
| getIsDoneLoadingFromDisk, | ||
| getOfflineCollectionsStatus, | ||
| getOfflineTrackStatus | ||
| } from 'app/store/offline-downloads/selectors' | ||
| import { OfflineDownloadStatus } from 'app/store/offline-downloads/slice' | ||
|
|
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| import { getAccountCollections } from './selectors' | ||
| import { buildCollectionIdsToNumPlayableTracksMap } from './utils' | ||
|
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| const { getIsReachable } = reachabilitySelectors | ||
|
|
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| export const useCollectionScreenData = ( | ||
| filterValue = '', | ||
| collectionType: 'albums' | 'playlists' | ||
| ) => { | ||
| const isDoneLoadingFromDisk = useSelector(getIsDoneLoadingFromDisk) | ||
| const isReachable = useSelector(getIsReachable) | ||
| const isOfflineModeEnabled = useIsOfflineModeEnabled() | ||
| const offlineTracksStatus = useProxySelector( | ||
| (state: AppState) => { | ||
| if (isDoneLoadingFromDisk && isOfflineModeEnabled && !isReachable) { | ||
| return getOfflineTrackStatus(state) | ||
| } | ||
| // We don't need offline download status when we're not offline. This saves us rerenders while we're downloading things and updating the offline download slice. | ||
| return undefined | ||
| }, | ||
| [isReachable, isOfflineModeEnabled, isDoneLoadingFromDisk] | ||
| ) | ||
|
|
||
| const filteredCollections = useProxySelector( | ||
| (state: AppState) => { | ||
| if (isOfflineModeEnabled && !isReachable) { | ||
| if (!isDoneLoadingFromDisk) { | ||
| return [] | ||
| } | ||
| } | ||
| const offlineCollectionsStatus = getOfflineCollectionsStatus(state) | ||
| return getAccountCollections(state, filterValue).filter((collection) => { | ||
| const isCollectionCorrectType = | ||
| collectionType === 'albums' | ||
| ? collection.is_album | ||
| : !collection.is_album | ||
| if (!isCollectionCorrectType) { | ||
| return false | ||
| } | ||
| if (isOfflineModeEnabled && !isReachable) { | ||
| const trackIds = | ||
| collection.playlist_contents.track_ids.map( | ||
| (trackData) => trackData.track | ||
| ) ?? [] | ||
| const collectionDownloadStatus = | ||
| offlineCollectionsStatus[collection.playlist_id] | ||
| // Don't show a playlist in Offline Mode if it has at least one track but none of the tracks have been downloaded yet OR if it is not marked for download | ||
| return ( | ||
| isCollectionCorrectType && | ||
| Boolean(collectionDownloadStatus) && | ||
| collectionDownloadStatus !== OfflineDownloadStatus.INACTIVE && | ||
| (trackIds.length === 0 || | ||
| trackIds.some((t) => { | ||
| return ( | ||
| offlineTracksStatus && | ||
| offlineTracksStatus[t.toString()] === | ||
| OfflineDownloadStatus.SUCCESS | ||
| ) | ||
| })) | ||
| ) | ||
| } | ||
| return true | ||
| }) | ||
| }, | ||
| [ | ||
| filterValue, | ||
| isReachable, | ||
| isOfflineModeEnabled, | ||
| isDoneLoadingFromDisk, | ||
| offlineTracksStatus | ||
| ], | ||
| shallowCompare | ||
| ) | ||
| const numPlayableTracksMap = useMemo(() => { | ||
| return buildCollectionIdsToNumPlayableTracksMap( | ||
| filteredCollections, | ||
| isOfflineModeEnabled && !isReachable, | ||
| offlineTracksStatus || {} | ||
| ) | ||
| }, [ | ||
| isOfflineModeEnabled, | ||
| isReachable, | ||
| offlineTracksStatus, | ||
| filteredCollections | ||
| ]) | ||
|
|
||
| return { | ||
| filteredCollections, | ||
| collectionIdsToNumTracks: numPlayableTracksMap | ||
| } | ||
| } |